I reconditioned an "Orbit 1" a few years ago - really easy to fix and clean up. Not a bad game to play as well. I think it uses Gottlieb parts, but I can't remember the flipper assemblies.

Most of the mechs in Hankin games are unique to Hankin as far as the construction of the mounting/brackets goes. From memory the bumper plunger and yoke are one solid piece instead of separate pieces (plunger, metal and fibre yoke) like every other manufacturer!

I've heard of guys retrofitting mechs from either Bally or Gottlieb in place of the Hankin parts.

I remember using classic Stern flipper mechs (with Hankin coils) on a Howzat i did over ten years ago.. on another Howzat I did more recently I retained the original flipper mechs and made new flipper links to replace the worn out originals, new coil sleeves, can't remember what I used for flipper bushes though.. I think I might have modified some to fit by machining them on a lathe!